css/css-grid/alignment/self-baseline/grid-self-baseline-changes-grid-area-size-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Grid Layout Test: Self-Baseline alignment may change grid area height</title>
<link rel="author" title="Javier Fernandez Garcia-Boente" href="mailto:jfernandez@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#column-align">
<link rel="help" href="https://drafts.csswg.org/css-align-3/#baseline-align-self">
<link rel="help" href="https://drafts.csswg.org/css-align-3/#align-by-baseline">
<link rel="match" href="../../../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="Column-Axis Self-Baseline alignment may change grid area height on a fixed grid.">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
.block, .grid { font: 10px/1 Ahem; }
.big { font-size: 20px; }
.block {
  position: absolute;
  z-index: -1;
  background: green;
  width: 100px;
  height: 100px;
}
.block > div {
  position: absolute;
  color: red;
}
.grid {
  display: grid;
  width: 100px;
  height: 100px;
  color: green;
  grid-auto-columns: 50px;
  align-items: baseline;
  align-content: start;
}
.firstRowFirstColumn {
  grid-row: 1;
  grid-column: 1;
}
.firstRowSecondColumn {
  grid-row: 1;
  grid-column: 2;
}
.secondRowFirstColumn {
  grid-row: 2;
  grid-column: 1;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div class="block">
    <div style="top: 8px; left: 0px;">XX<br>XXXX<br>XX<br>XX X</div>
    <div style="top: 0px; left: 50px" class="big">X</div>
</div>
<div class="grid">
  <div class="firstRowFirstColumn">XX XXXX XX</div>
  <div class="firstRowSecondColumn big">X</div>
  <div class="secondRowFirstColumn">XX X</div>
</div>